Question

Find the area of an isosceles triangle which has
base 16 cm and equal sides 17 cm each.
​

Answer 1

Answer:120cm2

Step-by-step explanation:

Answer 2

Step-by-step explanation:

$s = \frac{16+17+17}{2}$

=  16 + 34/2

= 50/2

= 25

Apply Heron's Formula

Area = √s(s-a)(s-b)(s-c)

        = √25(25-16)(25+17)(25-17)

        = √25 × 9 × 8 × 8

        = 5 × 3 × 8

        = 120 cm²